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参数资料
| 型号： | LTC3115EFE-1#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/42页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST ADJ 20-TSSOP |
| 标准包装： | 74 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.7 V ~ 40 V |
| 输入电压： | 2.7 V ~ 40 V |
| PWM 型： | 电压模式，混合 |
| 频率 - 开关： | 100kHz ~ 2MHz |
| 电流 - 输出： | 1A，2A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 20-TSSOP-EP |
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LTC3115-1
40V, 2A Synchronous
Buck-Boost DC/DC
Converter
Wide V IN Range: 2.7V to 40V
Wide V OUT Range: 2.7V to 40V
1A Output Current for V IN ≥ 3.6V, V OUT = 5V
2A Output Current in Step-Down Operation
Programmable Frequency: 100kHz to 2MHz
Synchronizable Up to 2MHz with an External Clock
Up to 95% Efficiency
30μA No-Load Quiescent Current in Burst Mode ?
Ultralow Noise Buck-Boost PWM
Internal Soft-Start
3μA Supply Current in Shutdown
Programmable Input Undervoltage Lockout
Small 4mm × 5mm × 0.75mm DFN Package
Thermally Enhanced 20-Lead TSSOP Package
24V/28V Industrial Applications
Automotive Power Systems
Telecom, Servers and Networking Equipment
FireWire Regulator
Multiple Power Source Supplies
FEATURES
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for V IN ≥ 6V
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Operation
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APPLICATIONS
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TYPICAL APPLICATION
DESCRIPTION
The LTC ? 3115-1 is a high voltage monolithic synchronous
buck-boost DC/DC converter. Its wide 2.7V to 40V input and
output voltage ranges make it well suited to a wide variety
of automotive and industrial applications. A proprietary
low noise switching algorithm optimizes efficiency with
input voltages that are above, below or even equal to the
output voltage and ensures seamless transitions between
operational modes.
Programmable frequency PWM mode operation provides
low noise, high efficiency operation and the ability to syn-
chronize switching to an external clock. Switching frequen-
cies up to 2MHz are supported to allow use of small value in-
ductors for miniaturization of the application circuit. Pin se-
lectable Burst Mode operation reduces standby current and
improves light load efficiency which, combined with a 3μA
shutdown current, make the LTC3115-1 ideally suited for
battery-powered applications. Additional features include
output disconnect in shutdown, short-circuit protection
and internal soft-start. The LTC3115-1 is available in ther-
mally enhanced 16-lead 4mm × 5mm × 0.75mm DFN and
20-lead TSSOP packages.
L , LT, LTC, LTM, Burst Mode, LTspice, Linear Technology and the Linear logo are registered
trademarks and No R SENSE is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Protected by U.S. Patents including
6404251, 6166527 and others pending.
0.1μF
10μH
0.1μF
95
Efficiency vs V IN
I LOAD = 0.5A
2.7V TO
40V
4.7μF
BURST PWM
BST1 SW1 SW2 BST2
V IN
LTC3115-1
PWM/SYNC VC
PV IN PV OUT
60.4k
47μF
3300pF
1M
33pF
15k
5V
1A V IN > 3.6V
2A V IN ≥ 6V
90
85
80
I LOAD = 1A
OFF ON
RUN
FB
RT
PV CC
V CC
249k
75
47.5k
GND
PGND
4.7μF
(OPTIONAL)
3115 TA01a
70
2
10
INPUT VOLTAGE (V)
V OUT = 5V
40
31151 TA01b
31151fa
For more information www.linear.com/LTC3115-1
1
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| LTC3115EFE-2#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up/Step Down 2.7V to 40V 20-Pin TSSOP EP 制造商:Linear Technology 功能描述:IC REG BK/BST ADJ 1A/2A 20TSSOP 制造商:Linear Technology 功能描述:BUCK/BOOST 40V 2A 2MHZ TSS 制造商:Linear Technology 功能描述:BUCK/BOOST, 40V, 2A, 2MHZ, TSSOP-20 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, 40Vin, 2A Sync. Buck-Boost Converter 制造商:Linear Technology 功能描述:DC-DC CONV, BUCK-BOOST, ADJ, TSSOP-20, Primary Input Voltage:40V, No. of Outputs:1, Output Current:2A, No. of Pins:20, Operating Temperature Min:-40C, Operating Temperature Max:125C, MSL:MSL 1 - Unlimited, Package / Case:20-TSSOP , RoHS Compliant: Yes |
| LTC3115EFE-2#TRPBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up/Step Down 2.7V to 40V 20-Pin TSSOP EP T/R 制造商:Linear Technology 功能描述:IC REG BK/BST ADJ 1A/2A 20TSSOP 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, 40Vin, 2A Sync. Buck-Boost Converter 制造商:Linear Technology 功能描述:DC-DC CONV, BUCK-BOOST, ADJ, TSSOP-20, Primary Input Voltage:40V, No. of Outputs:1, Output Current:2A, No. of Pins:20, Operating Temperature Min:-40C, Operating Temperature Max:125C, MSL:-, Package / Case:20-TSSOP , RoHS Compliant: Yes |
| LTC3115HFE-1#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK BOOST ADJ 20-TSSOP 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, 40Vin, 2A Sync. Buck-Boost Converter |
| LTC3115HFE-1#TRPBF | 制造商:Linear Technology 功能描述:IC REG BUCK BOOST ADJ 20-TSSOP 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, 40Vin, 2A Sync. Buck-Boost Converter |
| LTC3115HFE-2#PBF | 制造商:Linear Technology 功能描述:IC REG BK/BST ADJ 1A/2A 20TSSOP 制造商:Linear Technology 功能描述:BUCK/BOOST 40V 2A 2MHZ TSS 制造商:Linear Technology 功能描述:BUCK/BOOST, 40V, 2A, 2MHZ, TSSOP-20 制造商:Linear Technology 功能描述:DC-DC CONV, BUCK-BOOST, ADJ, TSSOP-20, Primary Input Voltage:40V, No. of Outputs:1, Output Current:2A, No. of Pins:20, Operating Temperature Min:-40C, Operating Temperature Max:150C, MSL:MSL 1 - Unlimited, Package / Case:20-TSSOP , RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, 40V, 2A Synchronous Buck-Boost DC/DC Converter |
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